It is not known which elements of Adam's designs for the room were executed.

Adam volume 22/184 is for a chimneypiece similar to the one in the laid out wall elevations (Adam volume 35/19), and that in Adam volume 22/190 is similar the chimneypiece in the other laid out wall elevation (Adam volume 35/17). Moreover, there is a chimneypiece design similar to Adam volume 22/190 belonging to the Harewood House Trust.